CN102359106A - Construction method for energy-saving pressure scattered cement soil anti-floating pile - Google Patents
Construction method for energy-saving pressure scattered cement soil anti-floating pile Download PDFInfo
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Abstract
The invention provides a construction method for an energy-saving pressure scattered cement soil anti-floating pile. The method comprises the following steps of: a) sinking a drill rod to drill, forming a cement soil pile body, and pulling out the drill rod; b) in the subsequent sinking drilling process of the drill rod, inserting an anti-pulling rib with an anticorrosive metal pipe to the specified position in the cement soil pile body; and c) finally pulling out the drill rod, and reserving the anti-pulling rib with the anticorrosive metal pipe in the cement soil pile body. The anti-floating pile manufactured by adopting the equipment and the method has the advantages of high floating resistance, no pile joint and long durability. Meanwhile, the purposes of discharging no mud, saving a large amount of steel, shortening the construction period and reducing the engineering cost can be fulfilled.
Description
Technical field
The present invention relates to technical field of civil engineering, particularly foundation and underground structure anti-floating pile construction method.
Background technology
Along with the high speed development of urban construction, traffic engineering, the development and utilization of underground space development has become trend.Thereupon, particularly outstanding to underground effect on structure by the buoyancy that underground water produces, when underground structure buried depth is big more, the buoyancy that is then produced by underground water is then high more.Groundwater pressure mainly shows the effect of underground structure: the basement bottom board protuberance, and basement leaks up to coal seam floor failure; Inhomogeneous the floating of underground structure integral body can cause the inclination of beam column node place cracking, bottom slab crack and building etc.In order to satisfy the needs of this basic stress balance; The general at present forms such as anti-floating stake technology or increase building counterweight that adopt solve; The use of anti-floating stake in underground structrue engineering wherein is more general, and a kind of as in the pile foundation of anti-floating stake more and more paid attention to by engineering circle at present.Anti-floating power through the anti-floating stake produces is offset the buoyancy that underground water produces underground structure.The anti-floating stake has emerged multiple anti-floating pile body form of structure through the development of decades, from the uniform section bored pile to the stake of prestressing force anti-floating with reducing anti-floating stake or the like.
Requirement to the anti-floating stake mainly concentrates on following 2 points:
(1) the anti-floating power that how to improve the anti-floating stake with reduce construction costs?
Does (2) how the endurance issues of anti-floating pile body solve?
Traditional reinforced concrete pile (comprising bored pile and preformed pile (side's stake and pile tube)); Be the pressure bearing pile type, compressive strength is high, can play good resistance to compression effect; But when using reinforced concrete pile as the anti-floating stake, many weak points of reinforced concrete pile have then been exposed.At first, concrete tensile strength is more much lower than its compressive strength, and tensile strength is merely 1/18 to 1/9 of compressive strength.Pile concrete can produce the crack under stretching action, along with the progressively expansion in crack, concrete is deactivated, and all pulling force is mainly born by reinforcing bar.Because it is underground that the anti-floating stake is in, crack on concrete will inevitably cause that reinforcing bar receives the erosion of water and chemical hazardous substances, thereby has influenced the durability of anti-floating stake; If the width in control crack then need significantly improve its reinforcement ratio, must cause the significantly raising of construction costs; They are two years old; The anti-floating power of anti-floating stake is to provide through the frictional force of pile body with the stake side soil body; Though the reinforced concrete pile pile body has higher-strength; But pile side friction does not improve because of the raising of pile strength, and especially in soft clay area, the pile side friction of reinforced concrete pile is owing to exist slurry coat method then lower.That is to say that reinforced concrete pours into native pile strength and can not give full play to, caused strength of materials waste, construction costs is improved.
For pile for prestressed pipe and side's stake,, withdrawed from the application of anti-floating stake gradually owing to distress in concrete can be produced in the endurance issues of presstressed reinforcing steel and the work progress though construction costs is lower.
For soil anchor or anchor cable, have the low advantage of construction costs, but, also have the imperfection of construction technology because the crack of grouting body is unreliable to the durability protection of resistance to plucking muscle body, cause in anti-floating stake field, being difficult to promoting.
Based on the present existing problem of anti-floating stake commonly used, engineering circle is badly in need of researching and developing a kind of novel anti-floating stake, and enough anti-floating power can be provided, can solve again the pile body durability and application life problem.
Solve the endurance issues of resistance to plucking muscle body (reinforcing bar or steel strand), must make their the corrosion situation in working environment clear.To this end, we searched the Japan Association of Steel Pipe Piles publication "Steel Hang - Other Design と construction," a book from the book lists a large number of steel pipe piles in the soil corrosion survey results, the following quote data from Japan Ministry of Construction Civil Engineering Institute survey findings:
The respondent is the steel pipe pile of good fortune paddy bridge, and concrete condition is following:
Steel pipe pile external diameter 486mm, wall thickness 16mm, 9mm.
10～November in 1958, construction was extracted after 17 years, carried out the corrosion investigation, and investigation result is as shown in table 1.Visible from table:
(1) the broken parts corrosion of filming in the atmosphere is remarkable; Part corrosion in the topsoil; Local corrosion is arranged except that comprehensive corrosion in the fine sand layer, and local corrosion is more in the mud burning into sand layer; Below clay folder mud, almost there is not corrosion;
(2) the corrosion rate overall average is 0.007mm/ in soil;
(3) position, corrosion rate top layer is obviously greater than the deep layer position; The top layer that coexists, the mud burning into sand is greater than fine sand;
(4) the average 0.024mm/ only in the maximum position of corrosion rate, but the wall thickness corrosion resistant of 2mm 80 years.
Japan's soil property engineering can also be investigated the corrosion situation of steel in soil layer, and the piling bar under the various soil conditions is carried out corrosion test, from 1962 to 1966, is provided with 126 piling bars in 10 places of Japan, and the section of stake is the L type, and stake is about 15m.Then respectively 1 year after setting, respectively extracted 42 in the 5th year, the 10th year, carry out that corrosion situation is observed and the mensuration of thickness of slab reduction, its investigation result is as shown in table 2.
Can make as judging from the investigation result of table 2:
(1) except that matrix section closely, almost maintains the original state through the stake surfaces in 10 years;
(2) various places 10 years overall average corrosion rate (two sides) is 0.0106mm/, and single face is 0.0053mm/, and maximum value is 0.0297mm/;
(3) corrosion rate reduces with year number increase;
(4) recommend design to use corrosion rate to be 0.02mm/.
The steel pipe pile corrosion result of table 1 diverse location
Steel pipe pile corrosion result in the Different Strata of table 2 different regions
In the various decrees in Japanese architecture, building, bay, field such as transform mountains, harness the river, indication, standard, corrosion quantitative limitation and anti-corrosion method all there are concrete regulation, as far as building, in brief:
(1) carries out corrosion test, adopt a year corrosion rate to multiply by 80 years or durable years;
(2) do not test, directly adopt the corrosion amount deposit of 2mm can satisfy life requirement.
Based on above he result of investigation, if consider the corrosion storage level of 3mm can satisfy the life requirement of using more than 100 years for the protection tube of the resistance to plucking muscle body of anti-floating stake.
Summary of the invention
Technical problem to be solved by this invention is; Overcome technical problem and fault of construction that existing uplift pile exists; The job practices of a kind of energy-saving pressure distributing cement-soil anti-floating stake is provided; The anti-floating stake of being made by this method has bigger diameter, and is bigger with the contact surface of the soil body, can obtain higher frictional resistance; The steel protection tube is enclosed within resistance to plucking muscle body in the certain thick steel pipe, and protective action is provided, and makes the reinforcement body in the time limit of designing requirement, can not produce corrosion, has improved its durability.Advanced, the anti-floating pile body of the anti-floating pile body construction technology of inventing not influenced by the crack, can significantly reduce construction costs.
In order to solve the existing problem of present reinforcement stake, technical scheme of the present invention is such:
The job practices of a kind of energy-saving pressure distributing cement-soil anti-floating stake, the anti-floating stake comprises a cement soil pile, and resistance to plucking muscle body is arranged in the pile body, and resistance to plucking muscle body is with the anticorrosion metal tube, it is characterized in that, and the job practices of this anti-floating stake is following:
A) at first drilling rod sinks to creeping into, and forms cement soil pile, extracts drilling rod;
B) in follow-up drilling rod sinking drilling process, the resistance to plucking muscle that insertion has the anticorrosion metal tube in cement soil pile is to assigned address;
C) extract drilling rod at last, the resistance to plucking muscle that will have the anticorrosion metal tube is stayed in the cement soil pile.
In a) step drilling rod sinking drilling process, the whitewashing while creeping into.
In a) step, in the drilling rod withdrawal process, whitewash simultaneously.
In a) step; After forming cement soil pile; Drilling rod is extracted, and the resistance to plucking muscle that will have the anticorrosion metal tube simultaneously is connected on the hoist engine and lifts by crane, when Kelly Stubb to resistance to plucking muscle body is sling fully; To have the resistance to plucking muscle body and the guide peg relative fixed of anticorrosion metal tube again, carry out b again) step.
Fixedly during the resistance to plucking muscle, the fastening devices of guide peg lower end is stuck on the resistance to plucking muscle, makes that the guide peg band the resistance to plucking muscle and got into together in the pile body when sinking to creeping into, when guide peg was extracted, fastening devices can be thrown off from resistance to plucking muscle body.
Carrying out b) before the step, the blade dimensions on the adjustment drilling rod makes blade stirring scope reduce, and moves drilling rod again and makes resistance to plucking muscle body aim at the pile body center, sink to creeping into.
Carrying out b) in the step process, drilling rod can reverse, and carries out rotary jet grouting simultaneously.
Said b) step after the resistance to plucking muscle inserted pile body and accomplish, is separated resistance to plucking muscle body with hoist engine, the resistance to plucking muscle is carried not and hoist engine one lifting, carries out c again) step, withdraw from drilling rod.
At c) in the step, when drilling rod is extracted, continue whitewashing, drilling rod stops operating simultaneously.
On the wall of anticorrosion metal tube, carry out perforate, opening diameter is 2-15mm, perforate be spaced apart 0.1-20m.
When guide peg sinks or extracts, carry out jet.
In the sinking drilling process, detect drilling rod and guide peg verticality with verticality detector, if exceed the inclination of error range, then be adjusted in the error range of permission.
Slip casting between resistance to plucking muscle body and anticorrosion metal tube in the work progress.
The job practices of another anti-floating stake is following:
A) at first resistance to plucking muscle body is sling and be fixedly connected with guide peg, drilling rod sinks to creeping into then, forms cement soil pile;
B) when forming cement earth pile, the resistance to plucking muscle body that will have the anticorrosion metal tube is brought in the cement soil pile;
C) extract drilling rod at last, the resistance to plucking muscle that will have the anticorrosion metal tube is stayed in the cement soil pile.
Sink to creeping into or extract in the process of drilling rod at a) step drilling rod, simultaneously whitewashing.
Also have a kind of job practices of anti-floating stake following:
A) at first resistance to plucking muscle body is sling and put into drilling rod inside, drilling rod sinks to creeping into then, forms cement soil pile;
B) when forming cement earth pile, the resistance to plucking muscle that will have the anticorrosion metal tube is brought in the cement soil pile;
C) extract drilling rod at last, the resistance to plucking muscle that will have the anticorrosion metal tube is stayed in the cement soil pile.
Through with upper type, the anti-floating stake of formation and existing all kinds of anti-floating stakes are more as shown in table 3.
Through finding out that relatively anti-floating stake of the present invention not only has higher anti-floating power, pile body and do not have joint, quality is controlled easily, and has long durability.Can reach simultaneously the purpose that reduces rolled steel dosage, reduction of erection time, reduction construction costs.
The comparison of table 3 anti-floating stake of the present invention and existing all kinds of anti-floating stakes
Description of drawings
Specify the present invention below in conjunction with the accompanying drawing and the specific embodiment;
Fig. 1 is a kind of novel energy-conserving anti-floating pilework sketch map of the present invention.
Fig. 2 is the structural representation of a kind of novel energy-conserving anti-floating pilework king-pile point of the present invention.
Fig. 3 is the structural representation that the anti-floating muscle is connected with base plate in a kind of novel energy-conserving anti-floating pilework of the present invention.
Fig. 4 is an anti-floating pile driving construction device structure sketch map of the present invention.
Fig. 4 a is an anti-floating pile driving construction equipment other direction structural representation of the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to Fig. 1; The pile body structure of this new type cement soil anti-floating stake does; Comprise a cement soil pile 3, bury resistance to plucking muscle body 4 in the pile body underground and link together that resistance to plucking muscle body 4 links to each other with structure base plate 6 with stake point 1, anchor ingot plate 2 and protecting tube 5; The anti-floating power that the anti-floating stake is provided is delivered on the structure base plate, realizes the anti-floating of underground structure.
Referring to Fig. 2; This new type cement soil anti-floating pile body structure is to comprise a rotary jet stirring pile body or by the pile body 3 that cementation forms, bury resistance to plucking muscle body 4 in the pile body 3 underground; Resistance to plucking muscle body 4 and stake point 1 link to each other with a plurality of anchor ingot plates 2, and resistance to plucking muscle body 4 is enclosed within one and protects in the steel pipe 5.
After increasing protection steel pipe 5, steel pipe 5 forms a shielding construction, and when corrosion takes place, then preferential corrosion protection steel pipe 5, protection steel pipe 5 thickness are confirmed by the engineering actual conditions, like age of project, bad border of corrosion etc.Effectively protected inner resistance to plucking muscle body 4 not to be corroded.
Referring to Fig. 3; Resistance to plucking muscle body 4 in this new type cement soil anti-floating pile body extend in the structure base plate 6 with protecting tube 5; Use ground tackle 7 and backing plate 10; Realize the sealing of protecting tube 5 in structure base plate 6 and the preparatory stretch-draw of resistance to plucking muscle body 4, and ground tackle 7 reinforcement body 4 is outward linked to each other with reinforcing bar 9 usefulness special mould clamps 8 in the structure base plate.
After forming this pile body 3,, adopt specialist tools, be sent in the pile body along the center of this pile body and go resistance to plucking muscle body 4 and anchor ingot plate 2, protecting tube 5, insert put in place after, also can slip casting in pile body.
Resistance to plucking muscle body 4 is one or more steel strand, reinforcing bar, wire rope etc.
Anti-floating pilework in the present embodiment is that substep is executed and do to be accomplished, and both can in comparatively hard soil layer, form, and also can in the soil layer of weakness such as mucky soil, quicksand and slity soil, form, and this anti-floating stake can obtain higher anti-floating power behind the maintenance certain hour.
Referring to Fig. 4 and Fig. 4 a, the construction equipment of a kind of new type cement soil anti-floating stake comprises a frame 11; Frame 11 is provided with rotating drilling rod 12; The drilling rod leading portion has drill bit 13, has stirring vane 14 on the drill bit, and the drilling rod leading portion has injected hole; Also be provided with on the frame and be used for resistance to plucking muscle body is inserted the inner guide peg 15 of pile body, guide peg 15 tops have one be used to lift by crane resistance to plucking muscle body hoist engine 16.
Said stirring vane 14 is folding stirring vane.
The lower end of guide peg 15 has a resistance to plucking muscle fastening devices 151.
Said hoist engine 16 has a branch sleeve 161, and said resistance to plucking muscle body inserts in the branch sleeve, and has horizontal fastening spiral to be tightened.
Said resistance to plucking muscle body is with the anticorrosion metal tube, and the lower end of resistance to plucking muscle body is connected with a major part anchor dish.
The job practices of this cement-soil anti-floating stake is following:
A) at first drilling rod sinks to creeping into, and forms cement soil pile, extracts drilling rod;
B) in follow-up drilling rod sinking drilling process, the resistance to plucking muscle that insertion has the anticorrosion metal tube in cement soil pile is to assigned address;
C) extract drilling rod at last, the resistance to plucking muscle that will have the anticorrosion metal tube is stayed in the cement soil pile.
Further, in a) step drilling rod sinking drilling process, whitewashing can certainly not whitewashed while creeping into.
Further,, in the drilling rod withdrawal process, whitewash simultaneously, can certainly not whitewash in a) step.
Further; In a) step, form cement soil pile after, drilling rod is extracted; The resistance to plucking muscle that will have the anticorrosion metal tube simultaneously is connected on the hoist engine and lifts by crane; When Kelly Stubb to resistance to plucking muscle body is sling fully, will have the resistance to plucking muscle body and the guide peg relative fixed of anticorrosion metal tube again, carry out b again) step.
Fixedly during the resistance to plucking muscle, the fastening devices of guide peg lower end is stuck on the resistance to plucking muscle, makes that the guide peg band the resistance to plucking muscle and got into together in the pile body when sinking to creeping into, when guide peg was extracted, fastening devices can be thrown off from resistance to plucking muscle body.
Carrying out b) before the step, the blade dimensions on the adjustment drilling rod makes blade stirring scope reduce, and moves drilling rod again and makes resistance to plucking muscle body aim at the pile body center, sink to creeping into.With can solving the eccentricity issues that the resistance to plucking muscle is put forward after the translation of resistance to plucking muscle body, the adjustment blade makes and stirs diameter and reduce the soil body outside the not disturbance pile body then, in order to avoid influence quality.
Carrying out b) in the step process, rotary jet grouting is carried out in the drilling rod counter-rotating simultaneously.Repeatedly whitewashing up and down makes not produce the space in the pile body that pile quality is reliable.Drilling rod also can just change or not change.
Said b) step after the resistance to plucking muscle inserted pile body and accomplish, is separated resistance to plucking muscle body with hoist engine, make the resistance to plucking muscle carry body not with the same moved further of hoist engine, carry out c again) step, drilling rod is withdrawed from.Resistance to plucking muscle body will be stayed in the pile body separately.
At c) in the step, when drilling rod is extracted, continue whitewashing, drilling rod stops operating simultaneously.
On the wall of anticorrosion metal tube, carry out perforate, opening diameter is 2-15mm, perforate be spaced apart 0.1-20m.Carry out perforate and can prevent in the joint bar process, produce vacuum in the anticorrosion metal tube, gas or the cement paste anticorrosion metal tube of can freely coming in and going out can not produce and vacuumize phenomenon in the pipe after the perforate.
Guide peg sinks or carries out when extracting jet.Jetly can promote flowing of cement paste, make it more even.
In the sinking drilling process, detect drilling rod and guide peg verticality with verticality detector, if exceed the inclination of error range, then be adjusted in the error range of permission, to guarantee anti-floating pile driving construction quality.Reason adjustment mode according to different has: extract once more and creep into, adjust frame level etc., as underground obstruction arranged, remove, vertically bore down to guarantee drilling rod.
Can also slip casting between resistance to plucking muscle body and anticorrosion metal tube in the work progress.
The job practices of another this cement-soil anti-floating stake is following in addition:
A) at first resistance to plucking muscle body is sling and be fixedly connected with guide peg, drilling rod sinks to creeping into then, forms cement soil pile;
B) when forming cement earth pile, the resistance to plucking muscle that will have the anticorrosion metal tube is brought in the cement soil pile;
C) extract drilling rod at last, the resistance to plucking muscle that will have the anticorrosion metal tube is stayed in the cement soil pile.
Said method sinks to creeping into or extract in the process of drilling rod at a) step drilling rod, simultaneously whitewashing.
Also have the job practices of a kind of cement-soil anti-floating stake following:
A) at first resistance to plucking muscle body is sling and with and put into drilling rod inside, drilling rod sinks to creeping into then, forms cement soil pile;
B) when forming cement earth pile, the resistance to plucking muscle that will have the anticorrosion metal tube is brought in the cement soil pile;
C) extract drilling rod at last, the resistance to plucking muscle that will have the anticorrosion metal tube is stayed in the cement soil pile.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the manual just explains principle of the present invention; The present invention also has various changes and modifications under the prerequisite that does not break away from spirit and scope of the invention, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (16)
1. the job practices of energy-saving pressure distributing cement-soil anti-floating stake, the anti-floating stake comprises a cement soil pile, and resistance to plucking muscle body is arranged in the pile body, and resistance to plucking muscle body is with the anticorrosion metal tube, it is characterized in that, and the job practices of this anti-floating stake is following:
A) at first drilling rod sinks to creeping into, and forms cement soil pile, extracts drilling rod;
B) in follow-up drilling rod sinking drilling process, the resistance to plucking muscle body that insertion has the anticorrosion metal tube in cement soil pile is to assigned address;
C) extract drilling rod at last, the resistance to plucking muscle that will have the anticorrosion metal tube is stayed in the cement soil pile.
2. the job practices of a kind of energy-saving pressure distributing cement-soil anti-floating according to claim 1 stake is characterized in that, in a) step drilling rod sinking drilling process, and the whitewashing while creeping into.
3. the job practices of a kind of energy-saving pressure distributing cement-soil anti-floating according to claim 1 stake is characterized in that, in a) step, in the drilling rod withdrawal process, whitewashes simultaneously.
4. the job practices of a kind of energy-saving pressure distributing cement-soil anti-floating according to claim 1 stake is characterized in that, in a) step; After forming cement soil pile; Drilling rod is extracted, and the resistance to plucking muscle that will have the anticorrosion metal tube simultaneously is connected on the hoist engine and lifts by crane, when Kelly Stubb to resistance to plucking muscle body is sling fully; To have the resistance to plucking muscle body and the guide peg relative fixed of anticorrosion metal tube again, carry out b again) step.
5. the job practices of a kind of energy-saving pressure distributing cement-soil anti-floating according to claim 4 stake; It is characterized in that, fixedly during the resistance to plucking muscle, the fastening devices of guide peg lower end is stuck on the resistance to plucking muscle; When feasible sinking is crept into; The guide peg band the resistance to plucking muscle and is got into together in the pile body, and when guide peg was extracted, fastening devices can be thrown off from resistance to plucking muscle body.
6. the job practices of a kind of energy-saving pressure distributing cement-soil anti-floating according to claim 4 stake; It is characterized in that; Carrying out b) before the step, the blade dimensions on the adjustment drilling rod makes blade stirring scope reduce; Move drilling rod again and make resistance to plucking muscle body aim at the pile body center, sink to creeping into.
7. the job practices of a kind of energy-saving pressure distributing cement-soil anti-floating according to claim 4 stake is characterized in that, is carrying out b) in the step process, slip casting is carried out in the drilling rod counter-rotating simultaneously.
8. the job practices of a kind of energy-saving pressure distributing cement-soil anti-floating according to claim 5 stake is characterized in that said b) step, after the completion of resistance to plucking muscle insertion pile body, resistance to plucking muscle body is separated with hoist engine, carry out c again) step, drilling rod is withdrawed from.
9. the job practices of a kind of energy-saving pressure distributing cement-soil anti-floating according to claim 5 stake is characterized in that, at c) in the step, when drilling rod is extracted, continue whitewashing, drilling rod stops operating simultaneously.
10. the job practices of a kind of energy-saving pressure distributing cement-soil anti-floating according to claim 1 stake is characterized in that on the wall of anticorrosion metal tube, carry out perforate, opening diameter is 2-15mm, perforate be spaced apart 0.1-20m.
11. the job practices according to claim 1 or 2 or 3 or 4 or 5 described a kind of energy-saving pressure distributing cement-soil anti-floating stakes is characterized in that, guide peg sinks or carries out when extracting jet.
12. job practices according to claim 1 or 2 or 3 or 4 or 5 described a kind of energy-saving pressure distributing cement-soil anti-floating stakes; It is characterized in that; In the sinking drilling process; Detect drilling rod and guide peg verticality with verticality detector,, then be adjusted in the error range of permission if exceed the inclination of error range.
13. the job practices of a kind of energy-saving pressure distributing cement-soil anti-floating according to claim 1 stake is characterized in that, slip casting between resistance to plucking muscle body and anticorrosion metal tube in the work progress.
14. the job practices of energy-saving pressure distributing cement-soil anti-floating stake, the anti-floating stake comprises a cement soil pile, and resistance to plucking muscle body is arranged in the pile body, and resistance to plucking muscle body is with the anticorrosion metal tube, it is characterized in that, the job practices of this anti-floating stake is following:
A) at first resistance to plucking muscle body is sling and be fixedly connected with guide peg, drilling rod sinks to creeping into then, forms cement soil pile;
B) when forming cement earth pile, the resistance to plucking muscle that will have the anticorrosion metal tube is brought in the cement soil pile;
C) extract drilling rod at last, the resistance to plucking muscle that will have the anticorrosion metal tube is stayed in the cement soil pile.
15. the job practices of a kind of energy-saving pressure distributing cement-soil anti-floating according to claim 14 stake is characterized in that, sinks to creeping into or c at a) step drilling rod) step extracts in the process of drilling rod whitewashing simultaneously.
16. the job practices of energy-saving pressure distributing cement-soil anti-floating stake, the anti-floating stake comprises a cement soil pile, and resistance to plucking muscle body is arranged in the pile body, and resistance to plucking muscle body is with the anticorrosion metal tube, it is characterized in that, the job practices of this anti-floating stake is following:
A) at first resistance to plucking muscle body is sling and put into drilling rod inside, drilling rod sinks to creeping into then, forms cement soil pile;
B) when forming cement earth pile, the resistance to plucking muscle that will have the anticorrosion metal tube is brought in the cement soil pile;
C) extract drilling rod at last, the resistance to plucking muscle that will have the anticorrosion metal tube is stayed in the cement soil pile.
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| CN105019459A (en) * | 2015-07-27 | 2015-11-04 | 周兆弟 | Drill rod feeding device of cement mixing pile driver |
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| CN116180768B (en) * | 2023-03-16 | 2024-05-17 | 中国十九冶集团有限公司 | Construction device and construction method for anti-floating anchor rod of building engineering |
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| CN105019459A (en) * | 2015-07-27 | 2015-11-04 | 周兆弟 | Drill rod feeding device of cement mixing pile driver |
| CN116180768A (en) * | 2023-03-16 | 2023-05-30 | 中国十九冶集团有限公司 | Construction device and construction method for anti-floating anchor rod of building engineering |
| CN116180768B (en) * | 2023-03-16 | 2024-05-17 | 中国十九冶集团有限公司 | Construction device and construction method for anti-floating anchor rod of building engineering |
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